Abstract:
Upper Paleozoic coal-bearing series is extensively developed in East Henan province.Using drilling,logging and seismic data,combined with regional and a local anatomy typically,the paper studied the influence on the coal seam occurrence state of fold,fault and magmatic activities in the east Henan Province,established the structure-magmatic coal-controlling pattern.The study region developed 4 types and 13 subtypes of structure-magmatic coal-controlling patterns.Coal-rich zone development is controlled by the large-scale fold uplift and the boundary fault of depression,the occurrence of coal seam by folds and faults in depression.Syndepositional anticlines result in the coal seam uplift to shallow with thickness to reduce,the syncline to enlarge deeper.anti-folds control the deep and thickness of the coal seams.Faults activity affect only to increase the depth of coal seam in hangingwall block and don't result in the influence on thickness and the appearance of the coal seam,anti-structures influence the deep variety or uplift erosion of coal seam.The phagocytosis and high metamorphism degree caused significantly by magmatic activity.